๐Ÿ” CVE Alert

CVE-2026-39933

UNKNOWN 0.0

Multiple XSS vulnerabilities in GlobalWatchlist

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
15th

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - GlobalWatchlist Extension allows Cross-Site Scripting (XSS). The issue has been remediated on the `master` branch, and in the release branches for MediaWiki versions 1.43, 1.44, and 1.45.

CWE CWE-79
Vendor the wikimedia foundation
Product mediawiki - globalwatchlist extension
Published Apr 7, 2026
Last Updated Apr 8, 2026
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Affected Versions

The Wikimedia Foundation / Mediawiki - GlobalWatchlist Extension
0 < 1.43

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
phabricator.wikimedia.org: https://phabricator.wikimedia.org/T418179 gerrit.wikimedia.org: https://gerrit.wikimedia.org/r/q/I1fc7b7e1d234b0aaf9f7d782a65da1451577587e

Credits

SomeRandomDeveloper